diff --git a/hw/bsp/lpc18/family.cmake b/hw/bsp/lpc18/family.cmake
index 1bfc63d21..515348e10 100644
--- a/hw/bsp/lpc18/family.cmake
+++ b/hw/bsp/lpc18/family.cmake
@@ -46,14 +46,9 @@ if (NOT TARGET ${BOARD_TARGET})
     )
   update_board(${BOARD_TARGET})
 
-  if (NOT DEFINED LD_FILE_${TOOLCHAIN})
-    MESSAGE(FATAL_ERROR "LD_FILE_${TOOLCHAIN} not defined")
-  endif ()
-
   if (TOOLCHAIN STREQUAL "gcc")
     target_link_options(${BOARD_TARGET} PUBLIC
       "LINKER:--script=${LD_FILE_gcc}"
-      "LINKER:-Map=$<IF:$<BOOL:$<TARGET_PROPERTY:OUTPUT_NAME>>,$<TARGET_PROPERTY:OUTPUT_NAME>,$<TARGET_PROPERTY:NAME>>${CMAKE_EXECUTABLE_SUFFIX}.map"
       # nanolib
       --specs=nosys.specs
       --specs=nano.specs
diff --git a/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.cmake b/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.cmake
new file mode 100644
index 000000000..c9f2a9c8e
--- /dev/null
+++ b/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.cmake
@@ -0,0 +1,15 @@
+#set(MCU_VARIANT MIMXRT1011)
+set(JLINK_DEVICE STM32G0B1RE)
+
+set(LD_FILE_gcc ${CMAKE_CURRENT_LIST_DIR}/STM32G0B1RETx_FLASH.ld)
+set(LD_FILE_iar ${ST_CMSIS}/Source/Templates/iar/linker/stm32g0b1xx_flash.icf)
+
+set(STARTUP_FILE_gcc ${ST_CMSIS}/Source/Templates/gcc/startup_stm32g0b1xx.s)
+set(STARTUP_FILE_iar ${ST_CMSIS}/Source/Templates/iar/startup_stm32g0b1xx.s)
+
+function(update_board TARGET)
+  target_compile_definitions(${TARGET} PUBLIC
+    STM32G0B1xx
+    #HSE_VALUE=8000000U
+    )
+endfunction()
diff --git a/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.h b/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.h
index 0d651ea4e..e622c71c2 100644
--- a/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.h
+++ b/hw/bsp/stm32g0/boards/stm32g0b1nucleo/board.h
@@ -44,7 +44,7 @@
 // Button
 #define BUTTON_PORT           GPIOC
 #define BUTTON_PIN            GPIO_PIN_13
-#define BUTTON_STATE_ACTIVE   1
+#define BUTTON_STATE_ACTIVE   0
 
 // UART Enable for STLink VCOM
 #define UART_DEV              USART2
@@ -64,17 +64,11 @@ static inline void board_clock_init(void)
   RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
   RCC_PeriphCLKInitTypeDef  PeriphClkInitStruct = { 0 };
 
-  /** Tick priority is used in HAL_RCC_OscConfig, so we need to enable it now
-  */
-  HAL_InitTick(0);
-
-  /** Configure the main internal regulator output voltage
-  */
+  /** Configure the main internal regulator output voltage */
   HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
 
   /** Initializes the RCC Oscillators according to the specified parameters
-  * in the RCC_OscInitTypeDef structure.
-  */
+  * in the RCC_OscInitTypeDef structure. */
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
   RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
@@ -91,8 +85,7 @@ static inline void board_clock_init(void)
   PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_PLL;
   HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct);
 
-  /** Initializes the CPU, AHB and APB buses clocks
-  */
+  /** Initializes the CPU, AHB and APB buses clocks */
   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                               |RCC_CLOCKTYPE_PCLK1;
   RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
diff --git a/hw/bsp/stm32g0/family.c b/hw/bsp/stm32g0/family.c
index 10023b7e2..1a975915f 100644
--- a/hw/bsp/stm32g0/family.c
+++ b/hw/bsp/stm32g0/family.c
@@ -44,6 +44,7 @@ UART_HandleTypeDef UartHandle;
 
 void board_init(void)
 {
+  HAL_Init(); // required for HAL_RCC_Osc TODO check with freeRTOS
   board_clock_init();
 
   // Enable All GPIOs clocks
@@ -162,6 +163,7 @@ volatile uint32_t system_ticks = 0;
 void SysTick_Handler (void)
 {
   system_ticks++;
+  HAL_IncTick();
 }
 
 uint32_t board_millis(void)
diff --git a/hw/bsp/stm32g0/family.cmake b/hw/bsp/stm32g0/family.cmake
new file mode 100644
index 000000000..5fc9387e5
--- /dev/null
+++ b/hw/bsp/stm32g0/family.cmake
@@ -0,0 +1,137 @@
+include_guard()
+
+if (NOT BOARD)
+  message(FATAL_ERROR "BOARD not specified")
+endif ()
+
+set(ST_FAMILY g0)
+set(ST_PREFIX stm32${ST_FAMILY}xx)
+
+set(ST_HAL_DRIVER ${TOP}/hw/mcu/st/stm32${ST_FAMILY}xx_hal_driver)
+set(ST_CMSIS ${TOP}/hw/mcu/st/cmsis_device_${ST_FAMILY})
+set(CMSIS_5 ${TOP}/lib/CMSIS_5)
+
+# enable LTO
+#set(CMAKE_INTERPROCEDURAL_OPTIMIZATION TRUE)
+
+# toolchain set up
+set(CMAKE_SYSTEM_PROCESSOR cortex-m0plus CACHE INTERNAL "System Processor")
+set(CMAKE_TOOLCHAIN_FILE ${TOP}/tools/cmake/toolchain/arm_${TOOLCHAIN}.cmake)
+
+set(FAMILY_MCUS STM32G0 CACHE INTERNAL "")
+
+# include board specific
+include(${CMAKE_CURRENT_LIST_DIR}/boards/${BOARD}/board.cmake)
+
+
+#------------------------------------
+# BOARD_TARGET
+#------------------------------------
+# only need to be built ONCE for all examples
+set(BOARD_TARGET board_${BOARD})
+if (NOT TARGET ${BOARD_TARGET})
+  add_library(${BOARD_TARGET} STATIC
+    ${ST_CMSIS}/Source/Templates/system_${ST_PREFIX}.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_cortex.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_pwr_ex.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_rcc.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_rcc_ex.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_gpio.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_uart.c
+    ${ST_HAL_DRIVER}/Src/${ST_PREFIX}_hal_uart_ex.c
+    )
+  target_include_directories(${BOARD_TARGET} PUBLIC
+    ${CMAKE_CURRENT_LIST_DIR}
+    ${CMSIS_5}/CMSIS/Core/Include
+    ${ST_CMSIS}/Include
+    ${ST_HAL_DRIVER}/Inc
+    )
+  target_compile_options(${BOARD_TARGET} PUBLIC
+    )
+  target_compile_definitions(${BOARD_TARGET} PUBLIC
+    )
+  update_board(${BOARD_TARGET})
+
+  target_sources(${BOARD_TARGET} PUBLIC
+    ${STARTUP_FILE_${TOOLCHAIN}}
+    )
+
+  if (TOOLCHAIN STREQUAL "gcc")
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--script=${LD_FILE_gcc}"
+      -nostartfiles
+      # nanolib
+      --specs=nosys.specs
+      --specs=nano.specs
+      )
+  else ()
+    # TODO support IAR
+    target_link_options(${BOARD_TARGET} PUBLIC
+      "LINKER:--config=${LD_FILE_iar}"
+      )
+  endif ()
+endif () # BOARD_TARGET
+
+
+#------------------------------------
+# Functions
+#------------------------------------
+function(family_configure_example TARGET)
+  family_configure_common(${TARGET})
+
+  #---------- Port Specific ----------
+  # These files are built for each example since it depends on example's tusb_config.h
+  target_sources(${TARGET} PUBLIC
+    # TinyUSB Port
+    ${TOP}/src/portable/st/stm32_fsdev/dcd_stm32_fsdev.c
+    # BSP
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/family.c
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../board.c
+    )
+  target_include_directories(${TARGET} PUBLIC
+    # family, hw, board
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/../../
+    ${CMAKE_CURRENT_FUNCTION_LIST_DIR}/boards/${BOARD}
+    )
+
+  #---------- TinyUSB ----------
+  # tinyusb target is built for each example since it depends on example's tusb_config.h
+  set(TINYUSB_TARGET_PREFIX ${TARGET}-)
+  add_library(${TARGET}-tinyusb_config INTERFACE)
+
+  target_include_directories(${TARGET}-tinyusb_config INTERFACE
+    ${CMAKE_CURRENT_SOURCE_DIR}/src
+    )
+  target_compile_definitions(${TARGET}-tinyusb_config INTERFACE
+    CFG_TUSB_MCU=OPT_MCU_STM32G0
+    )
+
+  # tinyusb's CMakeList.txt
+  add_subdirectory(${TOP}/src ${CMAKE_CURRENT_BINARY_DIR}/tinyusb)
+
+  # Link dependencies
+  target_link_libraries(${TARGET} PUBLIC ${BOARD_TARGET} ${TARGET}-tinyusb)
+
+  # group target (not yet supported by clion)
+  set_target_properties(${TARGET}-tinyusb ${TARGET}-tinyusb_config
+    PROPERTIES FOLDER ${TARGET}_sub
+    )
+
+  #---------- Flash ----------
+  family_flash_jlink(${TARGET})
+endfunction()
+
+
+function(family_configure_device_example TARGET)
+  family_configure_example(${TARGET})
+endfunction()
+
+function(family_configure_host_example TARGET)
+  family_configure_example(${TARGET})
+endfunction()
+
+function(family_configure_dual_usb_example TARGET)
+  family_configure_example(${TARGET})
+endfunction()
diff --git a/tools/cmake/cpu/cortex-m0plus.cmake b/tools/cmake/cpu/cortex-m0plus.cmake
new file mode 100644
index 000000000..1e316ccfc
--- /dev/null
+++ b/tools/cmake/cpu/cortex-m0plus.cmake
@@ -0,0 +1,11 @@
+if (TOOLCHAIN STREQUAL "gcc")
+  list(APPEND TOOLCHAIN_COMMON_FLAGS
+    -mthumb
+    -mcpu=cortex-m0plus
+    -mfloat-abi=soft
+    )
+
+  set(FREERTOS_PORT GCC_ARM_CM0 CACHE INTERNAL "")
+else ()
+  # TODO support IAR
+endif ()